Slide valves
[医] 闸板门
🧩 词语组成解析
slide
[slaɪd]
vi. 滑落;下跌;打滑;[棒球]滑垒;
vt. 衰落（成）;逐渐降低;使悄悄转动;（使）快捷而悄声地移动;
n. 幻灯片;降低;
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
I want to keep the after-school programs--
我要保存这些课外活动--
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
but as yet there is no overwhelmingly specialized patronage.
确实如此，但并没有特别的优待。